Aegagropila linnaei

In fact, Cladophora aegagropila is not a plant but a ball of algae 3 to 10 cm in diameter. Decorative exception to the rule that orders to fight algae by all means. It is usually found in very shallow lakes, the spherical shape resulting from the movement of the waves. In aquariums, it must be turned regularly so that it retains its shape. It can also be divided into pieces that will take the form of balls over time or will form a vegetal carpet if they are attached to stumps or stones. Protected species in some areas of Japan.